Two people face criminal charges after Beaverton police say they were found with a runaway 17-year-old California girl suspected of being a victim of sex trafficking.

The girl was part of a four-person group from Stockton, Calif., working its way north to Seattle, police said. Detectives responded to an ad, arranged a meeting at a hotel in Beaverton on Friday and soon found the missing girl with two women and a man, according to police.

Tyrell C. Armstrong Jr., 19, was booked into the Washington County Jail on charges of compelling prostitution, promoting prostitution and unlawful possession of a firearm. Breyonna M. Abercrombie, 18, was cited for promoting prostitution. No other arrests were made.

The 17-year-old will be returned to her mother in California, police said.